DISPOSITIF ET PROCÉDÉ DE PRODUCTION DE CORPS DE BALLONNET OU DE CORPS CREUX À PARTIR D'UNE ÉBAUCHE OU D'UN EXTRUDAT TUBULAIRE PAR MOULAGE PAR SOUFFLAGE
The invention relates to a device and to a method for producing balloon-shaped or hollow bodies from a tubular blank or extrudate by blow moulding, using at least one moulding tool having at least one temperature-controllable hollow mould, within which the blank can be inflated until the desired shape is attained and is fixed in said mould by warming and subsequent cooling. The hollow mould that is used is designed as a wall having an inwardly defining surface and an outwardly defining surface. One or more hollow spaces for the circulation of a liquid medium are arranged approximately in the centre between said surfaces.
